Cage for roller-bearings.



G. A. HEINZE LMAN. GAGE FOR ROLLER BEARINGS.

APPLIOATION TILED JULY 25, 1911.

Patented June25, 1912.

UNITED STATES PATENT oF uoE.

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at Belleville, Illinois, have invented a cer-- Specification of Letters latent.

Application filed July 85, 1911. Serial No. 640,436.

tain new and useful Improvement in Cages' for Roller-Bearings, of which the following is a full, clear, and exact description, such as will enable others skilled in the art-to which it appertains to make and use the same.

.This invention relates to roller bearing cages, and has for its object to provide a cage which is strong, light and inexpensive to manufacture.

Figure 1 of the drawings is an end eleva tional view, partly in section, of a cage constructed in accordance with my invention; Fig. 2 is a longitudinal sectional view taken on the line 22 of Fig. 1; Fig. 3 is a view similar to Fig. 2 of a slight modification; Fig. 4 is a perspective view of a portion of the reinforcing member that forms part of the cage illustrated in Figs. 1 and 2; Fig. 5 is a perspective view of a portion of the reinforcing member. that forms partof the cage shown in Fig. 3; and Fig. 6 is a perspective view illustrating still another form of reinforcing device that may be used.

Referring to the drawings which illustrate the preferred form of my invention, A designates a tapered cylindrical-shaped cast metal member that is provided with openings 1 for receiving the rollers B which are arranged between the inner and outer members of the bearing not shown. This member A is cast in one piece and it is reinforced and strengthened by means of a sheet metal member C which is preferably arranged in the die in which the member A is cast prior to the operation of pouring the molten metal into the die.

In the form of my invention illustrated in Figs. 1 and 2, the reinforcing member C conforms to the shape of the member A and is arranged on the outside of same. Said reinforcing member is formed from sheet metal, and the openings 2 in same, which receive the rollers B, are formed by slitting the member C longitudinally and then bending portions of same inwardly so as to form two ears 3 at the ends of each opening 2. These ears 3 extend inwardly over the end walls of the openings 1 in the member A 'and thus form bearing surfaces for the ends her.

portion A of the cage.

Patented June 25, 1912.

vent the cast metal member A from wearing away quickly at the points where the rollers B exert end thrusts on same, namely, at the ends of the roller openings 1 in said. mem- Another .desirable feature of such a construction is that it is light and also very strong for the sheet metal member C rein-. forces and strengthens the cast metal body And still another desirable feature of such a cage is that it is inexpensive to manufacture owingto the fact that the member A is cast in one piece, the member C is stamped out of thinz'sheet metal, and said members are combined and connected together during the operation of casting the member A. i

Instead of arranging the reinforcing member on the outside of the cast metal member which forms the body portion of the cage, the reinforcing member C can be arranged on the inner side of the cast metal member A, as shown in Fig. 3, the ears 3' on said reinforcing member which protect the end walls of the roller openings in the member A, projecting outwardly from the member C, as shown in Figs. 3 and 5.

While I prefer to form the reinforcing member in one piece I do not wish it to be understood that my invention islimited to such a construction for, if desired, twov reinforcing rings C can be arranged adjacent the ends of the cast metal member A either on the outside of said member or on the.

inner side of same, said rin s having ears 3 which cover the end walls 0 the roller'openings 1 in the cast metal member A and thus form bearing surfaces for the ends of said rollers.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1., A roller bearing cage consisting of a substantially cylindrical-shaped cast metal body portion provided with longitudinally extending roller openings, and a ring-shaped metallic. reinforcing member permanently connected to said body portion so as to strengthen same and provided with portions which project into said roller openings so as to form bearing surfaces for the rollers arranged in said openings.

' 2. A roller bearing cage consisting of a one-piece cast metal body portion of approximately sleeve form provided with roller openings for receiving rollers that extend longitudinally, of said body portion,

in said cast metal and a cylindrical-shaped reinforcing member of relatively snapper metal embedded y portion and permanently combined with same and provided with portions which lap over the ends of said roller openings so as to form bearing surfaces for the ends of the rollers.

. 3. A roller bearing cage consisting of a substantially tubular-she d sheet metal Ito-member having longitu inally extending 4. A cage for roller bearings consisting 'of'a one-piece cylindrical-shaped body portion formed of cast metal and rovided with longitudinally extending ro ler openings,

'and'a metallic reinforcing and strengthenmg member of corresponding shape embedded in saidbody portion and provided 7 with portions that extend over the ends of the roller openings in said body portion so as to form bearing surfaces for the ends of the rollers.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses, this sixth day of July 1911.

CHESTER A. HEINZELMAN Witnesses WELLS L. CHURCH, GEORGE tBAKEWELL. 

